[svn-r26413] Merge of r26276 from trunk.

Cleans up time functions in the autotools input files.

- Lumps all the time functionality together in configure.ac.
  This was previously more spread out due to Solaris issues
  with the ordering of certain checks.

- Removes processing that handles __tm_gmtoff members of struct
  tm. (libc-4)

- Removes BSDgettimeofday(). (IRIX 5.3)

- Removes timezone struct processing in gettimeofday(). (considered
  harmful)

Fixes: HDFFV-9083 and HDFFV-9085

Tested on: h5committest
           OS X (quail)
           Solaris (emu)

9 files changed, 111 insertions, 587 deletions

diff --git a/config/cmake/H5pubconf.h.in b/config/cmake/H5pubconf.h.in
index 841a811..3628537 100644
--- a/config/cmake/H5pubconf.h.in
+++ b/config/cmake/H5pubconf.h.in
@@ -82,9 +82,6 @@
    long long values. */
 #cmakedefine H5_FP_TO_ULLONG_RIGHT_MAXIMUM @H5_FP_TO_ULLONG_RIGHT_MAXIMUM@
 
-/* Define if gettimeofday() populates the tz pointer passed in */
-#cmakedefine H5_GETTIMEOFDAY_GIVES_TZ @H5_GETTIMEOFDAY_GIVES_TZ@
-
 /* Define to 1 if you have the `alarm' function. */
 #cmakedefine H5_HAVE_ALARM @H5_HAVE_ALARM@
 
@@ -94,9 +91,6 @@
 /* Define if the __attribute__(()) extension is present */
 #cmakedefine H5_HAVE_ATTRIBUTE @H5_HAVE_ATTRIBUTE@
 
-/* Define to 1 if you have the `BSDgettimeofday' function. */
-#cmakedefine H5_HAVE_BSDGETTIMEOFDAY @H5_HAVE_BSDGETTIMEOFDAY@
-
 /* Define if the compiler understands C99 designated initialization of structs
    and unions */
 #cmakedefine H5_HAVE_C99_DESIGNATED_INITIALIZER @H5_HAVE_C99_DESIGNATED_INITIALIZER@
@@ -355,12 +349,6 @@
 /* Define if `struct text_info' is defined */
 #cmakedefine H5_HAVE_STRUCT_TEXT_INFO @H5_HAVE_STRUCT_TEXT_INFO@
 
-/* Define if `struct timezone' is defined */
-#cmakedefine H5_HAVE_STRUCT_TIMEZONE @H5_HAVE_STRUCT_TIMEZONE@
-
-/* Define to 1 if `tm_zone' is a member of `struct tm'. */
-#cmakedefine H5_HAVE_STRUCT_TM_TM_ZONE @H5_HAVE_STRUCT_TM_TM_ZONE@
-
 /* Define if `struct videoconfig' is defined */
 #cmakedefine H5_HAVE_STRUCT_VIDEOCONFIG @H5_HAVE_STRUCT_VIDEOCONFIG@
 
@@ -424,14 +412,6 @@
 /* Define if `tm_gmtoff' is a member of `struct tm' */
 #cmakedefine H5_HAVE_TM_GMTOFF @H5_HAVE_TM_GMTOFF@
 
-/* Define to 1 if your `struct tm' has `tm_zone'. Deprecated, use
-   `HAVE_STRUCT_TM_TM_ZONE' instead. */
-#cmakedefine H5_HAVE_TM_ZONE @H5_HAVE_TM_ZONE@
-
-/* Define to 1 if you don't have `tm_zone' but do have the external array
-   `tzname'. */
-#cmakedefine H5_HAVE_TZNAME @H5_HAVE_TZNAME@
-
 /* Define to 1 if you have the <unistd.h> header file. */
 #cmakedefine H5_HAVE_UNISTD_H @H5_HAVE_UNISTD_H@
 
@@ -462,9 +442,6 @@
 /* Define to 1 if you have the `_scrsize' function. */
 #cmakedefine H5_HAVE__SCRSIZE @H5_HAVE__SCRSIZE@
 
-/* Define if `__tm_gmtoff' is a member of `struct tm' */
-#cmakedefine H5_HAVE___TM_GMTOFF @H5_HAVE___TM_GMTOFF@
-
 /* Define if your system can't handle converting floating-point values to long
    long. */
 #cmakedefine H5_HW_FP_TO_LLONG_NOT_WORKS @H5_HW_FP_TO_LLONG_NOT_WORKS@
diff --git a/configure b/configure
index ef35f67..6a68943 100755
--- a/configure
+++ b/configure
@@ -2671,79 +2671,6 @@ $as_echo "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_decl
-
-# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
-# ----------------------------------------------------
-# Tries to find if the field MEMBER exists in type AGGR, after including
-# INCLUDES, setting cache variable VAR accordingly.
-ac_fn_c_check_member ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
-$as_echo_n "checking for $2.$3... " >&6; }
-if eval \${$4+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$5
-#ifdef FC_DUMMY_MAIN
-#ifndef FC_DUMMY_MAIN_EQ_F77
-#  ifdef __cplusplus
-     extern "C"
-#  endif
-   int FC_DUMMY_MAIN() { return 1; }
-#endif
-#endif
-int
-main ()
-{
-static $2 ac_aggr;
-if (ac_aggr.$3)
-return 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  eval "$4=yes"
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$5
-#ifdef FC_DUMMY_MAIN
-#ifndef FC_DUMMY_MAIN_EQ_F77
-#  ifdef __cplusplus
-     extern "C"
-#  endif
-   int FC_DUMMY_MAIN() { return 1; }
-#endif
-#endif
-int
-main ()
-{
-static $2 ac_aggr;
-if (sizeof ac_aggr.$3)
-return 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  eval "$4=yes"
-else
-  eval "$4=no"
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-eval ac_res=\$$4
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-
-} # ac_fn_c_check_member
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
@@ -22529,113 +22456,6 @@ $as_echo "#define TIME_WITH_SYS_TIME 1" >>confdefs.h
 fi
 
 
-## ----------------------------------------------------------------------
-## Check for these two functions before the time headers are checked
-## for, otherwise they are not detected correctly on Solaris (the
-## configure test will fail due to multiply-defined symbols).
-##
-for ac_func in difftime
-do :
-  ac_fn_c_check_func "$LINENO" "difftime" "ac_cv_func_difftime"
-if test "x$ac_cv_func_difftime" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_DIFFTIME 1
-_ACEOF
-
-fi
-done
-
-for ac_func in gettimeofday
-do :
-  ac_fn_c_check_func "$LINENO" "gettimeofday" "ac_cv_func_gettimeofday"
-if test "x$ac_cv_func_gettimeofday" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_GETTIMEOFDAY 1
-_ACEOF
- have_gettime="yes"
-else
-  have_gettime="no"
-fi
-done
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
-$as_echo_n "checking for library containing clock_gettime... " >&6; }
-if ${ac_cv_search_clock_gettime+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char clock_gettime ();
-#ifdef FC_DUMMY_MAIN
-#ifndef FC_DUMMY_MAIN_EQ_F77
-#  ifdef __cplusplus
-     extern "C"
-#  endif
-   int FC_DUMMY_MAIN() { return 1; }
-#endif
-#endif
-int
-main ()
-{
-return clock_gettime ();
-  ;
-  return 0;
-}
-_ACEOF
-for ac_lib in '' rt posix4; do
-  if test -z "$ac_lib"; then
-    ac_res="none required"
-  else
-    ac_res=-l$ac_lib
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-  fi
-  if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_search_clock_gettime=$ac_res
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext
-  if ${ac_cv_search_clock_gettime+:} false; then :
-  break
-fi
-done
-if ${ac_cv_search_clock_gettime+:} false; then :
-
-else
-  ac_cv_search_clock_gettime=no
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
-$as_echo "$ac_cv_search_clock_gettime" >&6; }
-ac_res=$ac_cv_search_clock_gettime
-if test "$ac_res" != no; then :
-  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-fi
-
-for ac_func in clock_gettime
-do :
-  ac_fn_c_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime"
-if test "x$ac_cv_func_clock_gettime" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_CLOCK_GETTIME 1
-_ACEOF
- have_clock_gettime="yes"
-else
-  have_clock_gettime="no"
-fi
-done
-
-
 ## Unix
 for ac_header in sys/resource.h sys/time.h unistd.h sys/ioctl.h sys/stat.h
 do :
@@ -26326,42 +26146,6 @@ $as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-## check if `struct tm' has a `__tm_gmtoff' member.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __tm_gmtoff in struct tm" >&5
-$as_echo_n "checking for __tm_gmtoff in struct tm... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-  #include <sys/time.h>
-  #include <time.h>
-#ifdef FC_DUMMY_MAIN
-#ifndef FC_DUMMY_MAIN_EQ_F77
-#  ifdef __cplusplus
-     extern "C"
-#  endif
-   int FC_DUMMY_MAIN() { return 1; }
-#endif
-#endif
-int
-main ()
-{
-struct tm tm; tm.__tm_gmtoff=0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-$as_echo "#define HAVE___TM_GMTOFF 1" >>confdefs.h
-
-     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
 ## Check whether the global variable `timezone' is defined.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for global timezone variable" >&5
 $as_echo_n "checking for global timezone variable... " >&6; }
@@ -26408,217 +26192,6 @@ rm -f core conftest.err conftest.$ac_objext \
     ;;
 esac
 
-## Check whether `struct timezone' is defined.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether struct tm is in sys/time.h or time.h" >&5
-$as_echo_n "checking whether struct tm is in sys/time.h or time.h... " >&6; }
-if ${ac_cv_struct_tm+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <time.h>
-
-#ifdef FC_DUMMY_MAIN
-#ifndef FC_DUMMY_MAIN_EQ_F77
-#  ifdef __cplusplus
-     extern "C"
-#  endif
-   int FC_DUMMY_MAIN() { return 1; }
-#endif
-#endif
-int
-main ()
-{
-struct tm tm;
-				     int *p = &tm.tm_sec;
-				     return !p;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_struct_tm=time.h
-else
-  ac_cv_struct_tm=sys/time.h
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_struct_tm" >&5
-$as_echo "$ac_cv_struct_tm" >&6; }
-if test $ac_cv_struct_tm = sys/time.h; then
-
-$as_echo "#define TM_IN_SYS_TIME 1" >>confdefs.h
-
-fi
-
-ac_fn_c_check_member "$LINENO" "struct tm" "tm_zone" "ac_cv_member_struct_tm_tm_zone" "#include <sys/types.h>
-#include <$ac_cv_struct_tm>
-
-"
-if test "x$ac_cv_member_struct_tm_tm_zone" = xyes; then :
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_STRUCT_TM_TM_ZONE 1
-_ACEOF
-
-
-fi
-
-if test "$ac_cv_member_struct_tm_tm_zone" = yes; then
-
-$as_echo "#define HAVE_TM_ZONE 1" >>confdefs.h
-
-else
-  ac_fn_c_check_decl "$LINENO" "tzname" "ac_cv_have_decl_tzname" "#include <time.h>
-"
-if test "x$ac_cv_have_decl_tzname" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_TZNAME $ac_have_decl
-_ACEOF
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for tzname" >&5
-$as_echo_n "checking for tzname... " >&6; }
-if ${ac_cv_var_tzname+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <time.h>
-#if !HAVE_DECL_TZNAME
-extern char *tzname[];
-#endif
-
-#ifdef FC_DUMMY_MAIN
-#ifndef FC_DUMMY_MAIN_EQ_F77
-#  ifdef __cplusplus
-     extern "C"
-#  endif
-   int FC_DUMMY_MAIN() { return 1; }
-#endif
-#endif
-int
-main ()
-{
-return tzname[0][0];
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_var_tzname=yes
-else
-  ac_cv_var_tzname=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_var_tzname" >&5
-$as_echo "$ac_cv_var_tzname" >&6; }
-  if test $ac_cv_var_tzname = yes; then
-
-$as_echo "#define HAVE_TZNAME 1" >>confdefs.h
-
-  fi
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timezone" >&5
-$as_echo_n "checking for struct timezone... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-  #include <sys/types.h>
-  #include <sys/time.h>
-  #include <time.h>
-#ifdef FC_DUMMY_MAIN
-#ifndef FC_DUMMY_MAIN_EQ_F77
-#  ifdef __cplusplus
-     extern "C"
-#  endif
-   int FC_DUMMY_MAIN() { return 1; }
-#endif
-#endif
-int
-main ()
-{
-struct timezone tz; tz.tz_minuteswest=0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-$as_echo "#define HAVE_STRUCT_TIMEZONE 1" >>confdefs.h
-
-    have_struct_tz="yes"
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-## If gettimeofday() is going to be used, make sure it uses the timezone struct
-
-if test "$have_gettime" = "yes" -a "$have_struct_tz" = "yes"; then
-   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether gettimeofday() gives timezone" >&5
-$as_echo_n "checking whether gettimeofday() gives timezone... " >&6; }
-   if ${hdf5_cv_gettimeofday_tz+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "$cross_compiling" = yes; then :
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-          #include <time.h>
-          #include <sys/time.h>
-          int main(void)
-          {
-             struct timeval tv;
-             struct timezone tz;
-             tz.tz_minuteswest = 7777;  /* Initialize to an unreasonable number */
-             tz.tz_dsttime = 7;
-             gettimeofday(&tv, &tz);
-                /* Check whether the function returned any value at all */
-             if(tz.tz_minuteswest == 7777 && tz.tz_dsttime == 7)
-                exit(1);
-             else exit (0);
-          }
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  hdf5_cv_gettimeofday_tz=yes
-else
-  hdf5_cv_gettimeofday_tz=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-
-
-   if test ${hdf5_cv_gettimeofday_tz} = "yes"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-
-$as_echo "#define GETTIMEOFDAY_GIVES_TZ 1" >>confdefs.h
-
-   else
-      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-   fi
-fi
 
 ## ----------------------------------------------------------------------
 ## Does the struct stat have the st_blocks field?  This field is not Posix.
@@ -26838,7 +26411,73 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 ## ----------------------------------------------------------------------
 ## Check for functions.
 ##
-for ac_func in alarm BSDgettimeofday fork frexpf frexpl
+## NOTE: clock_gettime may require linking to the rt or posix4 library
+##       so we'll search for it before calling AC_CHECK_FUNCS.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
+$as_echo_n "checking for library containing clock_gettime... " >&6; }
+if ${ac_cv_search_clock_gettime+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char clock_gettime ();
+#ifdef FC_DUMMY_MAIN
+#ifndef FC_DUMMY_MAIN_EQ_F77
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int FC_DUMMY_MAIN() { return 1; }
+#endif
+#endif
+int
+main ()
+{
+return clock_gettime ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' rt posix4; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_clock_gettime=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_clock_gettime+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_clock_gettime+:} false; then :
+
+else
+  ac_cv_search_clock_gettime=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
+$as_echo "$ac_cv_search_clock_gettime" >&6; }
+ac_res=$ac_cv_search_clock_gettime
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+for ac_func in alarm clock_gettime difftime fork frexpf frexpl
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
@@ -26850,7 +26489,7 @@ _ACEOF
 fi
 done
 
-for ac_func in gethostname getpwuid getrusage lstat
+for ac_func in gethostname getpwuid getrusage gettimeofday
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
@@ -26862,7 +26501,7 @@ _ACEOF
 fi
 done
 
-for ac_func in rand_r random setsysinfo
+for ac_func in lstat rand_r random setsysinfo
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
diff --git a/configure.ac b/configure.ac
index 401a2b9..f915a8b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -997,16 +997,6 @@ dnl AC_CHECK_LIB([coug], [main])		## ...for ASCI/Red
 AC_HEADER_STDC
 AC_HEADER_TIME
 
-## ----------------------------------------------------------------------
-## Check for these two functions before the time headers are checked
-## for, otherwise they are not detected correctly on Solaris (the
-## configure test will fail due to multiply-defined symbols).
-##
-AC_CHECK_FUNCS([difftime])
-AC_CHECK_FUNCS([gettimeofday], [have_gettime="yes"], [have_gettime="no"])
-AC_SEARCH_LIBS([clock_gettime], [rt posix4])
-AC_CHECK_FUNCS([clock_gettime],[have_clock_gettime="yes"],[have_clock_gettime="no"])
-
 ## Unix
 AC_CHECK_HEADERS([sys/resource.h sys/time.h unistd.h sys/ioctl.h sys/stat.h])
 AC_CHECK_HEADERS([sys/socket.h sys/types.h])
@@ -1741,16 +1731,6 @@ AC_TRY_COMPILE([
     AC_MSG_RESULT([yes])],
   [AC_MSG_RESULT([no])])
 
-## check if `struct tm' has a `__tm_gmtoff' member.
-AC_MSG_CHECKING([for __tm_gmtoff in struct tm])
-AC_TRY_COMPILE([
-  #include <sys/time.h>
-  #include <time.h>], [struct tm tm; tm.__tm_gmtoff=0;],
-  [AC_DEFINE([HAVE___TM_GMTOFF], [1],
-          [Define if `__tm_gmtoff' is a member of `struct tm'])
-     AC_MSG_RESULT([yes])],
-  [AC_MSG_RESULT([no])])
-
 ## Check whether the global variable `timezone' is defined.
 AC_MSG_CHECKING([for global timezone variable])
 
@@ -1769,50 +1749,6 @@ case "`uname`" in
     ;;
 esac
 
-## Check whether `struct timezone' is defined.
-AC_STRUCT_TIMEZONE
-AC_MSG_CHECKING([for struct timezone])
-AC_TRY_COMPILE([
-  #include <sys/types.h>
-  #include <sys/time.h>
-  #include <time.h>], [struct timezone tz; tz.tz_minuteswest=0;],
-  [AC_DEFINE([HAVE_STRUCT_TIMEZONE], [1],
-          [Define if `struct timezone' is defined])
-    have_struct_tz="yes"
-    AC_MSG_RESULT([yes])],
-  [AC_MSG_RESULT([no])])
-
-## If gettimeofday() is going to be used, make sure it uses the timezone struct
-
-if test "$have_gettime" = "yes" -a "$have_struct_tz" = "yes"; then
-   AC_MSG_CHECKING(whether gettimeofday() gives timezone)
-   AC_CACHE_VAL([hdf5_cv_gettimeofday_tz],
-       [AC_TRY_RUN([
-          #include <time.h>
-          #include <sys/time.h>
-          int main(void)
-          {
-             struct timeval tv;
-             struct timezone tz;
-             tz.tz_minuteswest = 7777;  /* Initialize to an unreasonable number */
-             tz.tz_dsttime = 7;
-             gettimeofday(&tv, &tz);
-                /* Check whether the function returned any value at all */
-             if(tz.tz_minuteswest == 7777 && tz.tz_dsttime == 7)
-                exit(1);
-             else exit (0);
-          }], 
-          [hdf5_cv_gettimeofday_tz=yes], 
-          [hdf5_cv_gettimeofday_tz=no])])
-
-   if test ${hdf5_cv_gettimeofday_tz} = "yes"; then
-      AC_MSG_RESULT([yes])
-      AC_DEFINE([GETTIMEOFDAY_GIVES_TZ], [1],
-                [Define if gettimeofday() populates the tz pointer passed in])
-   else
-      AC_MSG_RESULT([no])
-   fi
-fi 
 
 ## ----------------------------------------------------------------------
 ## Does the struct stat have the st_blocks field?  This field is not Posix.
@@ -1870,9 +1806,12 @@ AC_TRY_COMPILE([#include <sys/ioctl.h>],[int w=TIOCGETD;],
 ## ----------------------------------------------------------------------
 ## Check for functions.
 ##
-AC_CHECK_FUNCS([alarm BSDgettimeofday fork frexpf frexpl])
-AC_CHECK_FUNCS([gethostname getpwuid getrusage lstat])
-AC_CHECK_FUNCS([rand_r random setsysinfo])
+## NOTE: clock_gettime may require linking to the rt or posix4 library
+##       so we'll search for it before calling AC_CHECK_FUNCS.
+AC_SEARCH_LIBS([clock_gettime], [rt posix4])
+AC_CHECK_FUNCS([alarm clock_gettime difftime fork frexpf frexpl])
+AC_CHECK_FUNCS([gethostname getpwuid getrusage gettimeofday])
+AC_CHECK_FUNCS([lstat rand_r random setsysinfo])
 AC_CHECK_FUNCS([signal longjmp setjmp siglongjmp sigsetjmp sigprocmask])
 AC_CHECK_FUNCS([snprintf srandom strdup symlink system])
 AC_CHECK_FUNCS([tmpfile asprintf vasprintf waitpid])
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index 134a5c5..31e1dd9 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -155,6 +155,34 @@ New Features
 
       (DER - 2015-03-08, HDFFV-9086)
 
+    - Removed obsolete time functionality from configure and C library
+
+      The library contained some residual functionality from obsolete
+      time zone handling code. This has been removed and the configure
+      checks for the time functions have been cleaned up.
+
+      * Lumped all the time functionality together in configure.ac.
+        This was previously more spread out due to Solaris issues
+        with the ordering of certain checks.
+
+      * Removes processing that handles __tm_gmtoff members of struct
+        tm. (libc-4)
+
+      * Removes BSDgettimeofday(). (IRIX 5.3)
+
+      * Removes timezone struct handling in gettimeofday(). (considered
+        harmful)
+
+      Note that the HDF5 library stores timestamps in a platform-independent
+      manner, so old files can still be read. This only affects convering
+      system time to HDF5 timestamps.
+
+      The library currently uses the tm_gmtoff member of the tm struct
+      (preferred, if available) or the timezone global variable to
+      construct HDF5 timestamps.
+
+      (DER - 2015-03-09, HDFFV-9083 and 9085)
+
     Library
     -------
     - None
diff --git a/src/H5Omtime.c b/src/H5Omtime.c
index e719e08..a3703b5 100644
--- a/src/H5Omtime.c
+++ b/src/H5Omtime.c
@@ -194,8 +194,8 @@ H5O_mtime_decode(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, H5O_t UNUSED *open_oh,
 
     /* decode */
     for(i = 0; i < 14; i++)
-	if(!HDisdigit(p[i]))
-	    HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "badly formatted modification time message")
+        if(!HDisdigit(p[i]))
+            HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "badly formatted modification time message")
 
     /*
      * Convert YYYYMMDDhhmmss UTC to a time_t.  This is a little problematic
@@ -213,36 +213,14 @@ H5O_mtime_decode(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, H5O_t UNUSED *open_oh,
     tm.tm_sec = (p[12]-'0')*10 + (p[13]-'0');
     tm.tm_isdst = -1; /*figure it out*/
     if((time_t)-1 == (the_time = HDmktime(&tm)))
-	HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "badly formatted modification time message")
+        HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "badly formatted modification time message")
 
 #if defined(H5_HAVE_TM_GMTOFF)
-    /* FreeBSD, OSF 4.0 */
+    /* BSD-like systems */
     the_time += tm.tm_gmtoff;
-#elif defined(H5_HAVE___TM_GMTOFF)
-    /* Linux libc-4 */
-    the_time += tm.__tm_gmtoff;
 #elif defined(H5_HAVE_TIMEZONE)
-    /* Linux libc-5 */
-    the_time -= timezone - (tm.tm_isdst?3600:0);
-#elif defined(H5_HAVE_BSDGETTIMEOFDAY) && defined(H5_HAVE_STRUCT_TIMEZONE)
-    /* Irix5.3 */
-    {
-        struct timezone tz;
-
-        if(HDBSDgettimeofday(NULL, &tz) < 0)
-            HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "unable to obtain local timezone information")
-        the_time -= tz.tz_minuteswest * 60 - (tm.tm_isdst ? 3600 : 0);
-    }
-#elif defined(H5_HAVE_GETTIMEOFDAY) && defined(H5_HAVE_STRUCT_TIMEZONE) && defined(H5_GETTIMEOFDAY_GIVES_TZ)
-    {
-	struct timezone tz;
-	struct timeval tv;  /* Used as a placebo; some systems don't like NULL */
-
-	if(HDgettimeofday(&tv, &tz) < 0)
-	    HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "unable to obtain local timezone information")
-
-	the_time -= tz.tz_minuteswest * 60 - (tm.tm_isdst ? 3600 : 0);
-    }
+    /* GNU/Linux systems */
+    the_time -= timezone - (tm.tm_isdst ? 3600 : 0);
 #else
     /*
      * The catch-all.  If we can't convert a character string universal
@@ -251,14 +229,12 @@ H5O_mtime_decode(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, H5O_t UNUSED *open_oh,
      * only way a user can get the modification time is from our internal
      * query routines, which can gracefully recover.
      */
-
-    /* Irix64 */
     HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, NULL, "unable to obtain local timezone information")
 #endif
 
     /* The return value */
     if(NULL == (mesg = H5FL_MALLOC(time_t)))
-	HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
+        HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
     *mesg = the_time;
 
     /* Set return value */
diff --git a/src/H5config.h.in b/src/H5config.h.in
index 0eba3bb..a2fa0ad 100644
--- a/src/H5config.h.in
+++ b/src/H5config.h.in
@@ -49,9 +49,6 @@
    long long values. */
 #undef FP_TO_ULLONG_RIGHT_MAXIMUM
 
-/* Define if gettimeofday() populates the tz pointer passed in */
-#undef GETTIMEOFDAY_GIVES_TZ
-
 /* Define to 1 if you have the `alarm' function. */
 #undef HAVE_ALARM
 
@@ -61,9 +58,6 @@
 /* Define if the __attribute__(()) extension is present */
 #undef HAVE_ATTRIBUTE
 
-/* Define to 1 if you have the `BSDgettimeofday' function. */
-#undef HAVE_BSDGETTIMEOFDAY
-
 /* Define if the compiler understands C99 designated initialization of structs
    and unions */
 #undef HAVE_C99_DESIGNATED_INITIALIZER
@@ -80,10 +74,6 @@
 /* Define if Darwin or Mac OS X */
 #undef HAVE_DARWIN
 
-/* Define to 1 if you have the declaration of `tzname', and to 0 if you don't.
-   */
-#undef HAVE_DECL_TZNAME
-
 /* Define to 1 if you have the `difftime' function. */
 #undef HAVE_DIFFTIME
 
@@ -298,12 +288,6 @@
 /* Define if `struct text_info' is defined */
 #undef HAVE_STRUCT_TEXT_INFO
 
-/* Define if `struct timezone' is defined */
-#undef HAVE_STRUCT_TIMEZONE
-
-/* Define to 1 if `tm_zone' is a member of `struct tm'. */
-#undef HAVE_STRUCT_TM_TM_ZONE
-
 /* Define if `struct videoconfig' is defined */
 #undef HAVE_STRUCT_VIDEOCONFIG
 
@@ -364,14 +348,6 @@
 /* Define if `tm_gmtoff' is a member of `struct tm' */
 #undef HAVE_TM_GMTOFF
 
-/* Define to 1 if your `struct tm' has `tm_zone'. Deprecated, use
-   `HAVE_STRUCT_TM_TM_ZONE' instead. */
-#undef HAVE_TM_ZONE
-
-/* Define to 1 if you don't have `tm_zone' but do have the external array
-   `tzname'. */
-#undef HAVE_TZNAME
-
 /* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 
@@ -399,9 +375,6 @@
 /* Define to 1 if you have the `_scrsize' function. */
 #undef HAVE__SCRSIZE
 
-/* Define if `__tm_gmtoff' is a member of `struct tm' */
-#undef HAVE___TM_GMTOFF
-
 /* Define if your system can't handle converting floating-point values to long
    long. */
 #undef HW_FP_TO_LLONG_NOT_WORKS
@@ -609,9 +582,6 @@
 /* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
 #undef TIME_WITH_SYS_TIME
 
-/* Define to 1 if your <sys/time.h> declares `struct tm'. */
-#undef TM_IN_SYS_TIME
-
 /* Define if your system can compile unsigned long long to floating-point
    casts. */
 #undef ULLONG_TO_FP_CAST_WORKS
diff --git a/src/H5private.h b/src/H5private.h
index 2a3c79e..c4e3d02 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -608,9 +608,6 @@ typedef struct {
 #ifndef HDatol
     #define HDatol(S)    atol(S)
 #endif /* HDatol */
-#ifndef HDBSDgettimeofday
-    #define HDBSDgettimeofday(S,P)  BSDgettimeofday(S,P)
-#endif /* HDBSDgettimeofday */
 #ifndef HDbsearch
     #define HDbsearch(K,B,N,Z,F)  bsearch(K,B,N,Z,F)
 #endif /* HDbsearch */
diff --git a/testpar/t_cache.c b/testpar/t_cache.c
index 85315ce..290cd3f 100644
--- a/testpar/t_cache.c
+++ b/testpar/t_cache.c
@@ -4242,7 +4242,6 @@ setup_rand(void)
     unsigned predefined_seeds[3] = {33402, 33505, 33422};
     unsigned seed;
     struct timeval tv;
-    struct timezone tz;
 
     if ( ( use_predefined_seeds ) &&
          ( world_mpi_size == num_predefined_seeds ) ) {
@@ -4258,7 +4257,7 @@ setup_rand(void)
 
     } else {
 
-        if ( HDgettimeofday(&tv, &tz) != 0 ) {
+        if ( HDgettimeofday(&tv, NULL) != 0 ) {
 
             nerrors++;
             if ( verbose ) {
diff --git a/tools/perform/sio_standalone.h b/tools/perform/sio_standalone.h
index b2f8220..4eb1ded 100644
--- a/tools/perform/sio_standalone.h
+++ b/tools/perform/sio_standalone.h
@@ -87,7 +87,6 @@
 #define HDatof(S)               atof(S)
 #define HDatoi(S)               atoi(S)
 #define HDatol(S)               atol(S)
-#define HDBSDgettimeofday(S,P)  BSDgettimeofday(S,P)
 #define HDbsearch(K,B,N,Z,F)    bsearch(K,B,N,Z,F)
 #define HDcalloc(N,Z)           calloc(N,Z)
 #define HDceil(X)               ceil(X)